Weed exterminator



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INVENTOR /I'ternlan.

ATTORNEY May 1, 1928.

A. KITTERMAN WEED EXTERMINATOR Patented Maly p1, 1928.

` UNITED STATES PATENT OFFICE.

ALEXANDER mTTERMAmoE PORTLAND, OREGON.

WEED EXTERMINATOB.

Application filed December 8, 1926. Serial No. 153,404. f l

The invention generally relates to Weed exterminators and primarily has for its object to provide a new and improved weed exterminator structure in which means is provided for penetrating the ground at the position of they weed and for cutting into the heart of the weed and there forcefully depositing a substantially measured quantity of exterminating liquid. I 1

In its more detailed nature, the invention resides in the provision of a new and improved weed exterminator vstructure in which is provided a casing having an extermina'tor fiuid accommodating reservoir therein, a forcing plunger reciprocable in the `casing and means for discharging the fluid through thelower end of the device directly into the ground in and around the weed, and means whereby when the plunger 20 is actuated a substantially measured quantity of such exterminator Huid will be ejected.

The invention still further resides in the provision Vin a Weed enterminator of the character described of` a hollow' plunger, means for retaining constant communication between the interior of the plunger and the interior of the casing, and means for filling the exterminator fluid into the casing through the plunger without removal there of.

i With the above and other objects in View that will hereinafter appear, the invention still further resides in the novel details of: construction, combination and arrangement of parts, all of which ,will be. first fully described iii the following deta'i'led descrii'ition, then be particularly pointed out in the appended'clain'is, reference being had to the accompanying drawing, in which:

Figure 1 is a side elevation of the invention. y

Figure 2 is a vertical longitudinal section, l parts bein(i shown in elevation.

Figure 3 is a plan view.

Figure 4 is 4an inverted plan View.

Figure 5 is a. horizontal section taken on the line 5--5 on Figure 2. p

Figure 6 isa detail perspective view of the plunger guide and measuring sleeve.y

`In the drawing, l` indicates the casing of `my improved weed exterminatorwhich is in the nature of a hollow tube threaded at its upper and lower ends as at 2 and 3, re-

spectively On the upper end of the easmg 1s threaded a gland cap 4, and a closure cap 5 is screwed onto the lower end, the said last mentioned cap having secured thereto as at 6 crossed blades 7 and being provided with a plurality of discharge orifices 8, the

purpose for which will later be described.

The cap 4 accommodates the mounting of the gland packing 9 and is centrally bored as at 1() to permit reciprocation of the plunger member 11, the gland washer 9 serving to prevent leakage around the plunger and through the cap 4.

The plunger member 11 is in the nature lof a hollow tube, thus providing a central exterminator oil passage and reservoir 12,

the upper and lower ends of the said plunger member being threaded to facilitate mounting of the upper and lower closure caps 13 and 14- respectively, the former serving as a convenient means `through which a suitable exterminating oil, or other liquid, may be iilled into the device.

` For guiding the lower end of the plunger ii'ieiiiber 11 and 'tor assisting in the feeding and measuring ofa quantity of extei'ininator oil to be dischargeil, l provide a sleeve meinber 18 `which maybe sweated into the lower ,end of the casing `1 or secured in any approved Inanner therein with its lower extremity substantially fiushwith the lower extremity of the said casing. This sleeve provided with a plurality of ,notches or grooveways 19 which extend from the upper yend a considerable distance down toward the lower end of the said sleeve, the purpose for which will presently appear.

In the lower cap 5 is provided a measuring cup or chamber f2() which may be formed integral with the cup in the manner illustrated or by inserting a sleeve thereinto, and the interna-1 diameter of the said cup is the same as that of the sleeve 18, thereby formlOl ` ing a continuation of the chamber formed by that sleeve and which is in the nature of a measuring chamber.

The plunger member 11 is provided near its lower end with diametrically oppositely positioned holes or apertures 21 providing communication between the hollow portion 12 of the plunger and the annular oil chamber 17 surrounding the said plunger member. A suitable hand hold providing pin 22 is secured through the walls of the plunger member 11 at its upper end and a retractile coil spring 23 is mounted to surround the plunger' member 11 between the cross pin 22 and the upper end of the cap 5, the upper end of the said spring being connected to the cross pin and the lower end of the said spring being threaded through the eye 24 secured to the ca 5. j

In operation, tae filler cap or closure cap 13 is removed and the chambers or reservoirs 12 and 17 filled with a suitable weed exterminator oil or other fiuid, after which the cap is again secured in position. The spring 23 serves to normally hold the plunger retracted within the casing 1, with the valve washer 15 at the bottom end thereof pressed tightly against the bottom cap 5 and closing the oriIices 8 against leaka 1e. The plunger member 11 snugly slidably ts within the sleeve 18 and measuring cup 2() but by reason of the provision of the holes 21 in the lower end of the said plunger member and the grooves 19 formed in the sleeve 18 communication is always provided between the interior of the plunger member and the chamber surrounding the same.

When it is desired to exterminate a weed the crossed blades at the lower end of the device are forced into the ground and through the weed severing portions and substantially quartering the heart thereof and b v working the end of' the device around a bit, the weel is partially destroyed and thek ground loosened and opened about the saine. By holding the casing 1 in the position just described a pulling out of the plunger member 11 by use of the hand hold cross piu 22 the plunger member is moved upwardly to a position above the lowermost ends of the grooves 19 and a quantity of extern'iinating oil, or other fluid, allowed-to fiow around the plunger member bottom and through the grooves or notches 19 into the measuring chamber formed by the sleeve 18 and cup 20. Upon release of the pin 22 the plunger will be quickly forced downwardly and the measured quantity of oil, or other fluid, forced through the orifices 8 into the ground in the small well formed by penetration of the crossed blades 7. In practice, each such `charge ot' exterminating fluid will constitute approximately a tablespoonful.

The upper end of the sleeve 18 may be inwardly bevelled as at 25 so that when the parts have been disassembled and it is desired to again assemble them the lower end of' the plunger member 11 may readily find its way into the sleeve without obstruction. By using the device which I have herein disclosed it is possible to entirely exterminate weeds. Bcgardlesis'ot how careful one is in pulling weeds portions of' the roots practically always remain and the growth of' the weed is merely retarded and not killed. In the use of my device, it is possible not only to cut portions of the weed but also to inject a quantity of fluid that will ypositively kill not only the plant but its roots and completely exterminate the same.

From the foregoing, taken in connection with the accompanying drawing, it is thought that the novel details of' construction, the manner of use and the advantages of my invention Vwill be readily apparent to those skilled in the art to which it re-V lates.

What I claim is:

1. A device of. theclass described comprising a casing, a hollow lunger movable in the casing 1n spaced re ation to provide a surrounding liquid reservoir and having an aperture to provide constant con'm'iunieation between the interior ofthe plunger and said reservoir, means whereby eirterminating fiuid may be filled into the reservoir through the plunger, a discharge head carried )y the casing, and means whereby when said plunger is moved in one direction a quantity of exterminating fluid will be caused to pass out of said discharge head.

2. In an exterminator of the character described, a casing, means through which exterminatorfluid may be ejected from the casing, a hollow plunger for forcefully ejecting the fiuid and having provision for maintaining constant communication between the interior of the plunger and the interior ofthe casing and for normally sealing said casing against leakage, and means facilitating filling the casing with exterminator fluid through the hollow plunger and from without the casing. Y

3. A device of the class described comprising a casing having a closure cap at its lower end provided with discharge orifices and a measuring cup, a plunger reciprocable in the casing and projecting from its upper end, means normall holding the plunger retracted in the casing with its lower end in the measuring cup and tightly closing the orifices, means to actuate the plunger to expel a quantity of exterminator fluid through the orifices, said plunger being hollow-and provided at its upper end with a closure cap and at its lower end with an aperture communicating with'the interior of the casing whereby said casing may be charged with exterminator fiuid through said plunger.

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4. A device of the class described comprising a casing having a closure cap atiits lower end provided with discharge orifices and a measuring cup, a plungerl reciprocable in the casing and projecting from its upper end, means normally holding the plunger retracted in the casing with its lower end in the measuring cupandtightly closing the orifices, a grooved sleeve for guiding the lower end of' the plunger and for permitting a quantity of fluid to flow into the measuring cup when said plunger is `being actuated to be expelled in the completion of the plungers action.

5. A device of the class described colnprising a casing having a closure cap at its lower t end provided with discharge orifices and a measuring cup, a plunger reciprocable in the casing and projecting from its upper end, means normally holding the plunger retracted in the casing with its lower end in the measuring cup and tightly closing the ori` fices, means for guidingl the lower end of the plunger and for permittingr a quantity of' fluid to flow into the measuring cup when said plunger is being actuated to be expelled in the completion of the plungers action, said plunger being hollow and provided at its upper end with a filler cap and at its lower end with an aperture communicating with the interior of the casing whereby said casing may be charged with eX- terminator fluid through said plunger, said last named means comprising a sleeve having an inside diameter coincident with that of the measuring cup and having its upper edge deeply grooved to constantly provide communication between the aperture of the plunger and the interior ofthe casing.

6. A device of the class described comprising a casi ng having a closure cap at its lower end provided with discharge orifices and a measuring cup, a plunger reciprocable in the casing and projecting from its upper end, means normally holding the plunger retracted in the casing with its lower end in the measuring cup and tightly closing the` orifices, meansto actuate the plunger to expel a quantity of exterminator fluid through the orifices, and crossed quartering blades depending l from said casing closure cap and positioned in association with said discharge orifices whereby certain of said orifices will discharge in the angles provided by adjacent portions of said blades.

7. A device of the class ydescribed comprising a tubular casing closed at its lower e'nd which is provided with discharge orifices and a plunger guiding and measuring cup and open at its upper end to permit passage of a plunger member, a plunger member of.' a length and diameterfor engaging the lower closed end of the casing and snugly slide-fitting the measuring cup and to project from the casing through the upper open end and which is spaced within the casing to provide a surrounding reservoir, a hand hold at the upper end of the plunger, a retractile spring surrounding the plunger and above and outside the casingiand connectedto the i plunger and the `upper casing end `to normally hold. the lower plunger end against the orifices to` close the same and to` store up energy for returning the lunger to that position when pulled upward?)7 and released, and a grooved sleeve for permitting a quantity of "fluid to flow fron the surrounding reservoir into the measuring cup when said plunger is moved upwardly out of said measuring cup.

8. A device of the class described comprising a tubular casing closed at its lower end which is provided with discharge orifices and a, plunger guiding and measuring cup and open at its upper end to permit passage of' a plunger member, a plunger member of a lenUth and diameter for engaging the lower closed end 4of the casing and snugly slidefitting the measuring cup and projecting from the casing through the upper open end and which is yspaced within the casing to provide a surrounding reservoir, a hand hold at the upper end of the plunger, a retractile spring connected to the plunger and the upper casing end to normally hold the lower plunger end against the orifices to close the saine and to store up energy for returning the plunger to that posit1on when pulled upwardly and released, means for permitting passage of a quantity of fluid from the surrounding reservoir into the measuring cup when said plunger is moved upwardly out of said measuring cup, said last named means comprising a guide sleeve registering with the measuring cup and having deep notches in its upper edge providing communication between the surrounding reservoir and the measuring cup as the lower end of the plunger is raised above the lower ends of said notches.

9, A device of the class described com v, ing from the casing through the upper open end and which is spaced within the casing to provide a surroundin reservoir, a hand hold at the upper end o the plunger, a retractile spring connected to the lunger and lthe upper casing end to norma ly hold the lower plunger end against the orifices to close the same and to store energy for returning the plunger to that position when pulled upwardly and released, means for permitting passage of a `quantity of fluid from thesnrroundng reservoir when Said plunger is moved upwardly out of said measuring cup, said last named means comprising u. guide sleeve registering with the 5 measuring cup and having deep notches 41n its upper edgeproviding communication `between the surrounding reservoir and the measuring cup ns the lower end of the plunger islra'sed `:ibovethe lower ends of said notches, said plunger being hollow and pro- 10 vided with a. filler cap at its upper end and n communicating aperture udjcent its lower end adapted normally to communicate with the interior of the casing through one of said sleeve notches.

ALEXANDER KITTERMAN. 

